package com.wanxi.servlet.user;

import com.alibaba.fastjson.JSONObject;
import com.wanxi.dto.ResultDTO;
import com.wanxi.vo.UserVO;
import com.wanxi.service.UserService;
import com.wanxi.service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/login")
public class LoginServlet extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

//        1.乱码处理
        req.setCharacterEncoding("UTF-8");
        resp.setCharacterEncoding("UTF-8");
//        2.得到前端的值
        String username = req.getParameter("username");
        String password = req.getParameter("password");
//        3.封装到VO
        UserVO userVO = new UserVO();
        userVO.setUsername(username);
        userVO.setPassword(password);
//        4.调用服务逻辑层
        UserService userService = new UserServiceImpl();
//        5.得到返回结果
        ResultDTO resultDTO = userService.login(userVO);
        if ("success".equals(resultDTO.getMsg())) {
            req.getSession().setAttribute("username", username);
        }
//        6.返回给前端
        resp.getWriter().println(JSONObject.toJSONString(resultDTO));

    }
}
